Assessment of genetic variability among Jordanian tomato landrace using inter-simple sequence repeats markers.

Autor: Brake, Mohammad H., Al-Gharaibeh, Moath A., Hamasha, Hassan R., Sakarneh, Nuha S. Al, Alshomali, Ibrahim A., Migdadi, Hussein M., Qaryouti, Muien M., Haddad, Nizar J.
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Zdroj: Jordan Journal of Biological Sciences; 2021, Vol. 14 Issue 1, p91-95, 5p
Abstrakt: Twenty-nine Jordanian tomato landraces (Solanum lycopersicum L.) were characterized using inter-simple sequence repeats marker (ISSRs). Seven primers of ISSR could generate 77 markers; 51 of which were polymorphic. The lowest genetic similarity value (0.46) was found between landraces Jo964 and Jo955, while the highest (0.94) was obtained between landraces Jo983 and 29. The dendrogram shows that the samples are clustered in two main groups. The first group includes 4 landraces, and there are 25 landraces in the second group, which comprises one subgroup containing 13 landraces. Accessions collected from the Irbid region reported more mean values for the effective alleles (1.64), Shannon index (0.49), and heterozygosity (0.34). This study highlighted the diversity among Jordanian tomato landraces conserved in the National gene bank. These results will help in the establishment of a core collection for conserving collected landraces. The precise molecular characterization will help in efficient management and genetic improvement of local landraces. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index